The circular plots consist of aspen and birch trees, surrounded by PVC pipes that allowed scientists to vent carbon dioxide and ozone gas into the air around the trees, to study what effect high ...

Aspen, beech, and birch sap seen as small niche, but could have potential for new revenue streams for maple producers.

the branches of the birch have been spread out and the wind has been rustling them. The poplar, on the other hand, has been standing straight, reaching toward the clouds. Next up, we have another tree ...

birch, and Scots pine have both male and female flowers on every tree – and pollination by the wind results in the production of seeds on the female trees. However, aspen also has the ability to ...

Wildfires that swept through several communities in northeast Oklahoma over the weekend left widespread destruction, reducing ...

I have lived here since 2008, and I have never seen so much red in our aspen and birch leaves ... and I study tree physiology. In the fall, I keep an eye on when the leaves change colors as ...

Native trees, such as oak, birch, aspen, rowan and wild cherry have been planted on land around Yorkshire Water's Cottingham pumping station. The Woodland Trust, project lead for the scheme near ...